ProblemA school administrator wants to know what proportion of teachers in their state have a Master's degree. The administrator takes an SRS of 100 teachers from a statewide database containing every teacher, and they find 55 teachers in the sample have a Master's degree. The administrator wants to use this data to construct a one-sample z interval for a proportion.

Choose all that apply:

A. The data is a random sample from the population of interest.

B. np^ 10 and n(1p^)10

C. Individual observations can be considered independent.